CN218523402U - Automatic pressurizing and overpressure safety discharger for liquid hydrogen storage tank - Google Patents
Automatic pressurizing and overpressure safety discharger for liquid hydrogen storage tank Download PDFInfo
- Publication number
- CN218523402U CN218523402U CN202222893102.3U CN202222893102U CN218523402U CN 218523402 U CN218523402 U CN 218523402U CN 202222893102 U CN202222893102 U CN 202222893102U CN 218523402 U CN218523402 U CN 218523402U
- Authority
- CN
- China
- Prior art keywords
- liquid hydrogen
- pipeline
- tank
- temperature
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model belongs to the technical field of liquid hydrogen technique and specifically relates to a liquid hydrogen basin is from pressure boost and automatic safe discharging equipment of superpressure. A liquid hydrogen tank self-pressurization pipeline is connected between the upper end and the lower end of the vacuum heat-insulation tank body of the liquid hydrogen tank, and a liquid hydrogen tank overpressure safety discharge pipeline is connected on the liquid hydrogen tank self-pressurization pipeline; the liquid hydrogen jar is from pressure boost pipeline includes first empty warm formula vaporizer and pressure boost governing valve, the one end of first empty warm formula vaporizer is passed through the pipeline and is connected with the lower extreme of the liquid hydrogen jar vacuum insulation jar body, and the other end of first empty warm formula vaporizer passes through the pipeline and is connected with the upper end of the liquid hydrogen jar vacuum insulation jar body. The problem of pressure maintenance in the liquid hydrogen tank due to continuous liquid outlet is solved, the problem that the liquid hydrogen tank is not used for a long time, and the gas pressure in the tank is high before the safety valve is opened, so that the pressure in the tank is maintained in a reasonable interval, the set overpressure part gas can be discharged without external manual or pneumatic switch control, and the safety coefficient is high.
Description
Technical Field
The utility model belongs to the technical field of liquid hydrogen technique and specifically relates to a liquid hydrogen basin is from pressure boost and automatic safe discharging equipment of superpressure.
Background
Liquid hydrogen, commonly known as liquid hydrogen, is liquid obtained by cooling hydrogen, is colorless, tasteless, high-energy and low-temperature liquid fuel, has a boiling point of 20.37K, a freezing point of 13.96K and a density of 70.85kg/m < 3 > under atmospheric pressure, is usually used as fuel for rocket launching, and is also used as fuel for other vehicles at present. With the obvious energy crisis and environmental problems, replacing the existing fossil fuel with clean energy is one of the important ways to solve the energy and environmental problems, hydrogen energy has attracted much attention in recent years as a green energy and energy carrier with abundant reserves, wide sources and high energy density, and hydrogen fuel using hydrogen energy as a power source has become the most popular research field due to its advantages of high energy conversion rate, good fuel economy and zero emission.
In the normal outward infusion process of the liquid hydrogen tank, the gas phase space in the vacuum heat insulation tank body of the liquid hydrogen tank is gradually enlarged, at the moment, liquid hydrogen in the vacuum heat insulation tank body of the liquid hydrogen tank flows outwards, the pressure of the gas phase space is continuously reduced, and due to the reduction of the pressure, the liquid in the vacuum heat insulation tank body of the liquid hydrogen tank cannot be normally and continuously output outwards, so that the liquid outlet efficiency of the liquid hydrogen storage tank system is seriously influenced; meanwhile, when the liquid hydrogen tank is not used for a long time, the pressure in the vacuum heat-insulation tank body can be gradually increased, and the safety factor of the liquid hydrogen storage tank system is reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the liquid hydrogen storage tank system with the automatic overpressure safety discharging device is capable of maintaining the pressure in the vacuum heat-insulating tank body of the liquid hydrogen tank in a reasonable range and high in safety coefficient.
The utility model provides a technical scheme that its technical problem adopted is: a liquid hydrogen storage tank self-pressurization and overpressure automatic safety discharge device is used for being installed on a liquid hydrogen tank vacuum heat insulation tank body and comprises a liquid hydrogen tank self-pressurization pipeline, wherein the liquid hydrogen tank self-pressurization pipeline is connected between the upper end and the lower end of the liquid hydrogen tank vacuum heat insulation tank body, and a liquid hydrogen tank overpressure safety discharge pipeline is connected to the liquid hydrogen tank self-pressurization pipeline; the liquid hydrogen jar is from the pressure boost pipeline and is included first empty warm formula vaporizer and pressure boost governing valve, the one end of first empty warm formula vaporizer is passed through the pipeline and is connected with the lower extreme of the liquid hydrogen jar vacuum insulation jar body, and the other end of first empty warm formula vaporizer passes through the pipeline and is connected with the upper end of the liquid hydrogen jar vacuum insulation jar body.
Further, a first low-temperature manual cut-off valve and a low-temperature filter are sequentially arranged on a pipeline between the first air-temperature type gasifier and the lower end of the vacuum heat-insulation tank body of the liquid hydrogen tank from left to right; a first low-temperature pipeline safety valve is arranged on a pipeline between the first air-temperature gasifier and the pressure-increasing regulating valve; and a second low-temperature pipeline safety valve and a second low-temperature manual cut-off valve are sequentially arranged on a pipeline between the pressure-increasing regulating valve and the upper end of the liquid hydrogen tank vacuum heat-insulating tank body from left to right.
Furthermore, the liquid hydrogen tank overpressure safety discharge pipeline comprises a back pressure valve and a diffusion pipe, and a second air-temperature gasifier is mounted on a pipeline between the back pressure valve and the diffusion pipe.
Furthermore, a gas phase interface is arranged at the upper end of the inner container of the vacuum heat insulation tank body of the liquid hydrogen tank, a liquid phase interface is arranged at the lower end of the inner container of the vacuum heat insulation tank body of the liquid hydrogen tank, and the gas phase interface is connected with the liquid phase interface through a self-pressurization pipeline of the liquid hydrogen tank.
Furthermore, a throttling orifice plate and a check valve are sequentially arranged on the pipeline between the second air-temperature gasifier and the diffusing pipe from bottom to top.
Furthermore, the lower end of the diffusing pipe is provided with a manual drain valve.
The utility model has the advantages that: the utility model discloses need not external energy input, carry out the pressure boost through the internal partial liquid hydrogen that flows out of the adiabatic jar of liquid hydrogen jar vacuum, both solved the liquid hydrogen jar and because of going out liquid tank internal pressure in succession and maintain the problem, solved the liquid hydrogen jar again and used for a long time, the high discharge problems that need of gas pressure in the jar before the relief valve is opened to maintain jar internal pressure in a reasonable interval, and need not the external superpressure partial gas that can discharge the settlement for artificial or pneumatic switch control, factor of safety is high.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
in the figure: 1. the system comprises a first low-temperature manual cut-off valve, a second low-temperature filter, a first air-temperature type gasifier, a first low-temperature pipeline safety valve, a pressure boost regulating valve, a second low-temperature pipeline safety valve, a second low-temperature manual cut-off valve, a back pressure valve, a second air-temperature type gasifier, a throttle orifice plate, a check valve, a blow-off pipe, a manual blow-off valve, a gas phase interface, a liquid hydrogen tank vacuum heat insulation tank body and a liquid phase interface, wherein the first low-temperature manual cut-off valve, the second low-temperature pipeline safety valve, the second low-temperature manual cut-off valve, the back pressure valve, the second air-temperature type gasifier, the throttle orifice plate, the check valve, the blow-off pipe, the manual blow-off valve, the gas phase interface, the liquid hydrogen tank vacuum heat insulation tank body and the liquid phase interface are arranged in sequence.
Detailed Description
The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
The automatic pressurization and overpressure safe discharge device for the liquid hydrogen storage tank, as shown in fig. 1, is used for being installed on a vacuum heat insulation tank body 15 of the liquid hydrogen tank, and comprises a liquid hydrogen tank self-pressurization pipeline, wherein the liquid hydrogen tank self-pressurization pipeline is connected between the upper end and the lower end of the vacuum heat insulation tank body 15 of the liquid hydrogen tank, and the liquid hydrogen tank overpressure safe discharge pipeline is connected to the liquid hydrogen tank self-pressurization pipeline; the upper end of the inner container of the vacuum heat-insulation tank body 15 of the liquid hydrogen tank is provided with a gas-phase interface 14, the lower end of the inner container of the vacuum heat-insulation tank body 15 of the liquid hydrogen tank is provided with a liquid-phase interface 16, and the gas-phase interface 14 is connected with the liquid-phase interface 16 through a self-pressurization pipeline of the liquid hydrogen tank;
the liquid hydrogen jar is from pressure boost pipeline includes first empty warm formula vaporizer 3 and pressure boost governing valve 5, the one end of first empty warm formula vaporizer 3 is passed through the pipeline and is connected with the liquid phase interface 16 of the lower extreme of the liquid hydrogen jar vacuum insulation jar body 15, and the other end of first empty warm formula vaporizer 3 is passed through the pipeline and is connected with the upper end gas phase interface 14 of the liquid hydrogen jar vacuum insulation jar body 15.
A first low-temperature manual cut-off valve 1 and a low-temperature filter 2 are sequentially arranged on a pipeline between the first air-temperature type gasifier 3 and the lower end of the liquid hydrogen tank vacuum heat insulation tank body 15 from left to right; a first low-temperature pipeline safety valve 4 is arranged on a pipeline between the first air-temperature gasifier 3 and the pressure-increasing regulating valve 5; a second low-temperature pipeline safety valve 6 and a second low-temperature manual cut-off valve 7 are sequentially arranged on a pipeline between the pressure-increasing regulating valve 5 and the upper end of the liquid hydrogen tank vacuum heat-insulating tank body 15 from left to right.
The overpressure safety discharge pipeline of the liquid hydrogen tank comprises a backpressure valve 8 and a blow-off pipe 12; the second air-temperature type gasifier 9 is installed on a pipeline between the back pressure valve 8 and the diffusing pipe 12, wherein the back pressure valve 8 solves the problem that a set overpressure part gas can be discharged without external manual or pneumatic switch control, the second air-temperature type gasifier 9 solves the problem that the temperature is too low to meet the discharge standard when low-temperature gas hydrogen in a gas phase space of the liquid hydrogen tank is discharged, and the pipeline behind the gasifier does not frost when the low-temperature gas hydrogen is discharged.
A throttling orifice plate 10 and a check valve 11 are sequentially arranged on a pipeline between the second air-temperature gasifier 9 and the diffusing pipe 12 from bottom to top, and the arrangement of the throttling orifice plate 10 enables the discharge flow rate of the gas hydrogen to be more stable and the discharge to be safer; the check valve 11 ensures that air and water vapor in the air cannot enter a pipeline system, and avoids pipeline pollution or ice blockage.
In addition, a manual drain valve 13 is installed at the lower end of the diffusing pipe 12, and the manual drain valve 13 is installed to enable sewage such as condensed water at the bottom of the diffusing pipe to be periodically drained.
The working process is as follows:
in the process of continuously discharging liquid from the liquid hydrogen tank vacuum heat insulation tank body 15, when the pressure in the tank is reduced to the set pressure of the pressure boost regulating valve 5, the pressure boost regulating valve 5 is automatically opened; liquid hydrogen in the vacuum heat insulation tank body 15 of the liquid hydrogen tank flows into a pipeline, flows into a low-temperature filter 2 for filtering after passing through a first low-temperature manual cut-off valve 1, enters a first air-temperature gasifier 3, converts high-pressure liquid hydrogen into high-pressure gaseous hydrogen, finally enters the vacuum heat insulation tank body 15 of the liquid hydrogen tank through a first low-temperature pipeline safety valve 4, a pressurization regulating valve 5, a second low-temperature pipeline safety valve 6 and a second low-temperature manual cut-off valve 7, enters a gas phase space at the top of the vacuum heat insulation tank body 15 of the liquid hydrogen tank, is used for increasing the pressure in the vacuum heat insulation tank body 15 of the liquid hydrogen tank and improving the liquid outlet stability of a liquid outlet pipeline system; when the pressure in the liquid hydrogen tank reaches the required continuous liquid outlet pressure, the pressure-increasing regulating valve 5 is automatically closed.
When the pressure in the liquid hydrogen tank vacuum heat insulation tank body 15 is too high, the back pressure valve 8 is automatically opened, low-temperature gaseous hydrogen in the liquid hydrogen tank vacuum heat insulation tank body 15 flows into a pipeline and enters the second air-temperature gasifier 9 through the second low-temperature manual cut-off valve 7 and the back pressure valve 8, the second air-temperature gasifier 9 converts the low-temperature gaseous hydrogen into gaseous hydrogen close to normal temperature, the gaseous hydrogen close to normal temperature enters the diffusion pipe 12 through the throttling orifice plate 10 and the check valve 11, and finally the gaseous hydrogen is discharged through the diffusion pipe 12.
Meanwhile, the function of the pressure boost regulating valve 5 is to reduce the pressure of the gaseous hydrogen in the vacuum heat insulation tank body 1 of the liquid hydrogen tank to the value of the output which is set by the pressure boost regulating valve 5, and the pressure boost regulating valve is a normally open valve.
The first low-temperature pipeline safety valve 4 and the second low-temperature pipeline safety valve 6 are both set with pipeline pressure values in advance and are automatically opened when the pressure in the pipeline exceeds the set values.
While the foregoing description describes only certain embodiments of the invention, it is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a liquid hydrogen storage tank is from pressure boost and automatic safe discharging equipment of superpressure for install on liquid hydrogen tank vacuum insulation jar body (15), its characterized in that: the system comprises a liquid hydrogen tank self-pressurization pipeline, wherein the liquid hydrogen tank self-pressurization pipeline is connected between the upper end and the lower end of a liquid hydrogen tank vacuum heat insulation tank body (15), and a liquid hydrogen tank overpressure safety discharge pipeline is connected to the liquid hydrogen tank self-pressurization pipeline;
the liquid hydrogen tank self-pressurization pipeline comprises a first air-temperature type gasifier (3) and a pressurization regulating valve (5), one end of the first air-temperature type gasifier (3) is connected with the lower end of the liquid hydrogen tank vacuum heat insulation tank body (15) through a pipeline, and the other end of the first air-temperature type gasifier (3) is connected with the upper end of the liquid hydrogen tank vacuum heat insulation tank body (15) through a pipeline.
2. A liquid hydrogen storage tank self-pressurization and overpressure automatic safety vent as claimed in claim 1, wherein: a first low-temperature manual shut-off valve (1) and a low-temperature filter (2) are sequentially arranged on a pipeline between the first air-temperature gasifier (3) and the lower end of the liquid hydrogen tank vacuum heat insulation tank body (15) from left to right;
a first low-temperature pipeline safety valve (4) is arranged on a pipeline between the first air-temperature gasifier (3) and the pressure-increasing regulating valve (5);
a second low-temperature pipeline safety valve (6) and a second low-temperature manual cut-off valve (7) are sequentially arranged on the pipeline between the pressure-increasing regulating valve (5) and the upper end of the liquid hydrogen tank vacuum heat insulation tank body (15) from left to right.
3. A liquid hydrogen storage tank self-pressurization and overpressure automatic safety vent as claimed in claim 1, wherein: the overpressure safety discharge pipeline of the liquid hydrogen tank comprises a backpressure valve (8) and a diffusion pipe (12), and a second air-temperature gasifier (9) is installed on the pipeline between the backpressure valve (8) and the diffusion pipe (12).
4. A liquid hydrogen storage tank self-pressurization and overpressure automatic safety vent as claimed in claim 1, wherein: the upper end of the inner container of the liquid hydrogen tank vacuum heat insulation tank body (15) is provided with a gas phase interface (14), the lower end of the inner container of the liquid hydrogen tank vacuum heat insulation tank body (15) is provided with a liquid phase interface (16), and the gas phase interface (14) is connected with the liquid phase interface (16) through a liquid hydrogen tank self-pressurization pipeline.
5. A liquid hydrogen storage tank self-pressurizing and overpressure automatic safety relief device as claimed in claim 3 wherein: and a throttling orifice plate (10) and a check valve (11) are sequentially arranged on the pipeline between the second air-temperature gasifier (9) and the diffusing pipe (12) from bottom to top.
6. A liquid hydrogen storage tank self-pressurization and overpressure automatic safety vent as claimed in claim 3, wherein: the lower end of the diffusing pipe (12) is provided with a manual drain valve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222893102.3U CN218523402U (en) | 2022-10-31 | 2022-10-31 | Automatic pressurizing and overpressure safety discharger for liquid hydrogen storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222893102.3U CN218523402U (en) | 2022-10-31 | 2022-10-31 | Automatic pressurizing and overpressure safety discharger for liquid hydrogen storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218523402U true CN218523402U (en) | 2023-02-24 |
Family
ID=85249984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222893102.3U Active CN218523402U (en) | 2022-10-31 | 2022-10-31 | Automatic pressurizing and overpressure safety discharger for liquid hydrogen storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218523402U (en) |
-
2022
- 2022-10-31 CN CN202222893102.3U patent/CN218523402U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111928109A (en) | Boil-off gas recovery system of hydrogenation station | |
| CN202546249U (en) | Unpowered skid-mounted LNG (liquefied natural gas) filling station | |
| CN105179933B (en) | Universal aircraft power system with liquefied natural gas (LNG) as fuel and fuel supply method of universal aircraft power system | |
| CN101520128A (en) | Movable type method and device for supplying liquid phase natural gas and gas phase natural gas | |
| CN109630876A (en) | A kind of deep cooling high-pressure hydrogen storing hydrogen supply device | |
| CN102425725B (en) | System and method for reclaiming boil off gas (BOG) in liquefied natural gas (LNG) storage tank | |
| CN204300680U (en) | Skid-mounted LNG mono-pump two-shipper filling apparatus | |
| CN204099891U (en) | A kind of LNG low-temperature storage tank | |
| CN218523402U (en) | Automatic pressurizing and overpressure safety discharger for liquid hydrogen storage tank | |
| CN201034242Y (en) | Energy-saving liquefied natural gas automatically gasifying and aerating means | |
| CN201546685U (en) | Production device of standardized gas well | |
| CN203202634U (en) | BOG liquefaction system of skid-mounted LNG fueling station | |
| CN202132695U (en) | Mobile liquefied natural gas supply device for drilling well site | |
| CN202327654U (en) | System for recycling boil-off gas (BOG) in liquefied natural gas (LNG) storage tank | |
| CN202791322U (en) | LNG (liquefied natural gas) gasification station | |
| CN209470015U (en) | Hydrogenation stations based on high-pressure hydrogen storing | |
| CN204592854U (en) | The LNG gaseous fuel air feeder that BOG preferentially utilizes | |
| CN203322724U (en) | LNG (Liquefied Natural Gas) skid-mounted gas filling device | |
| CN104121475A (en) | Apparatus for rapidly gasifying liquid nitrogen through circulating water bath, and operating method thereof | |
| CN103452706B (en) | Vaporizer evaporating capacity automatic regulating system peculiar to vessel and Automatic adjustment method | |
| CN212298527U (en) | Boil-off gas recovery system of hydrogenation station | |
| CN205606171U (en) | Automobile -used LNG initiative turbocharging system | |
| CN210107047U (en) | Gasification pressure regulating measurement sled | |
| CN218441838U (en) | Liquid hydrogen pressure boost hydrogen supply device | |
| CN209672053U (en) | LNG gasification sled |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |